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P. P. BATES. 111151 03 MAKING FIFTH WHEELS.

Patented Mar. 16,1886.

UMTED STATES PATENT QFFICE.

FRANKLIN P. BATES, OF SYRACUSE, NEW YORK, ASSIGNOR OF ONE-HALF TO ELLIS L. BAKER, OF SAME PLACE.

DIE FOR MAKING FIFTH-WHEELS.

ESPECIFICATION forming part of Letters Patent No. 338,217, dated March 16, 1886.

Application filed July 30, 1885.

To whom it may concern.-

Be it known that I, FRANKLIN P. Barns, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in the Manufacture of Fifth-Wheels for Vehicles, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention consists in a 'novel construction of metal dies by means of which fifthwheels of vehicles are formed in their requisite circular or segmental outline longitudinally andin proper shapein cross-section in the most I 5 accurate, perfect, and expeditious manner.

The invention is fully illustrated in the annexed drawings, wherein Figure l is a top plan view of the female die. Fig. 2 is an enlarged transverse section of the dies, taken on 2 line 0c 0:, Fig. 1, and including the support of said dies. Fig. 3 is a longitudinal section of the female die,takcn on line y y, Fig. 1. Fig. at is a perspective view of the fifth-wheel; and Fig. 5 is an enlarged transverse section taken on line z a, Fig. 4.

eSimilar letters of reference indicate corresponding parts.

A represents the female die, consisting of'a metal blocl:,which has an annular or segmental o face, f, of a true and uniform plane, and is provided in said face with a circular or segmental groove, a, which is of the same diameter and of the same form in cross-section as the wheel to be formed by said die. In said 5 groove, at opposite sides of a diametricalline drawn through the center, about which the groove is formed, are sockets b b, for the reception of the clips i t, which are usually formed on the under side of the fifth-wheel,

o asrepresented in Fig. 4 of the drawings. Said die and its groove a may be either segmental, as represented by full lines in Fig. 2 of the drawings, or circular in form, as indicated by dotted lines in said figure, according to the style 4 5 of the fifth-wheel to be formed. This die is secured to the supplementary bed B,mounted on the bed proper of a drop-press, which bed is provided with arecess, r, in which the die A is seated and firmly secured by keys to, or other suitable or well-known means.

Between the sockets b bin the die A is a vertical channel, 0, extending through the Serial No. 173,037.

of the die.

(No model.)

die, and directly under said channel and coinciding therewith is a vertical channel, e, in the bed B. Said channel e intersects alateral or horizontal channel, 71., extending to the exterior of the bed B, and in this lateral channel his fulcrumed a lever, Z, one end of which protrudes at the exterior of the bed B, so as to be convenient of access for manipulation. Upon theinner end of said lever rests a plunger, d, which projects through the vertical channels 6 and c.

0 represents the male die arranged over the die A, and provided on the side adjacent thereto with a corresponding annular or segmental face of a true and uniform plane.

The operation of my invention is as follows: The fifth-wheelhaving been previously forged with the attaching clips ii,and bent approxi- 7o mately into its requisite segmental or circular shape, is heated to a swaging or forging heat and then placed in the groove a of the die A, the clips 2 z entering the channels b I) Then the die 0, which is attached 7 5 to the drop of the press, is allowed to drop onto the aforesaid fifth-wheel, thereby effectually pressing the latter into the groove a, which imparts to it its requisite outline longitudinally and transversely, the arrangement of the channels I) b in the die A insuring the accurate disposition of the clips 5 i, for attachment to the head-block of the vehicle. After this is effected the die 0 is raised from the. die A, then by depressing the outer ends of the leversl Zthe plungers (Z d are caused to throw the fifth-wheel out of the groove a.

It will be observed that by my invention I am enabled to produce fifth-wheels of uniform diameters and perfectly true in outline-a 9odesideratum which has never been accomplished by the method of bending said wheels in the manner heretofore resorted to.

Having described my invention,wh at I claim as new, and desire to secure by Letters Patent, 1s

1. Adie for forming fifth-Wheels of vehicles. consisting of a metal block having an annular or segmental face of a true uniform plane, and provided in said face with a circular or seg- 1oc mental groove, the diameter and cross-section of which is of the exact dimensions and shape required of the wheel to be formed, substantially as set forth.

2. The within-described dies for forming fifth-wheels of vehicles, consisting of a metal block having an annular or segmental face of a true uniform plane, and provided in said face with a circular or segmental groove of the diameter and cross-section required of the wheel to be formed, and a metal block over said grooved block and provided on the side adjacent thereto with a corresponding annular or segmental face of a true and uniform plane, substantially as described and shown.

8. The dies for forming fiftlrwheels of vehicles, consisting of the block A, having an annular or segmental face, f, of a true uniform plane, and provided in said face with the circnlar'or segmental groove a, and with sockets b b in said groove, at opposite sides of a diametrical line drawn through the center about which the groove is formed, and the block C over the block A, and provided on the side adjacent thereto with a corresponding annular or segmental face of a true and uniform plane, substantially as shown and set forth.

4. The combination of the die A, provided with the annular or segmental groove 11 and the vertical channels 0 0 through the die and ssazi'i intersecting the groove a, and plungers d d in the channels, substantially as described and shown, for the purpose set forth.

5. The combination of the bed B, provided with a recess, 1", vertical channels 6 e, intersecting said recess, and lateral channels h h, extending from the vertical channels to the exterior of the bed, the levers Z Z in the channels h h, the die A, seated in the recess 0' and provided with the annular or segmental groove a, and with vertical channels 0 c, coinciding with the channels 6 e and intersecting the groove a, and the plungers d d in said vertical channels and resting on the levers Z Z, substantially as described and shown, for the purpose set forth.

In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 18th day of July, 1885.

FRANKLIN P. BATES. 

